Photographic developing apparatus



Dec. 6, G C BEIDLER 1,889,818

PHOTOGRAPHIC DEVELOPNG APPARATUS Filed Oct. 26, 1931 4 Sheets-Sheet lDec. 6, 1932. G. c. BE|DLER 1,889,818

I v.PHO'IOCYRAl-"I'IIC DEVELOPING APPARATUS Filed oct. 2s, 1951 4sheets-sheet 2 Dec. 6, 1932.` Q BEIDLER 1,889,818

PHOTOGRAPHI C DEVELOP I NG APPARATUS Filed Oct. 26. 1931 4 Sheets-Sheet5 Dec. 6, l A G, 1` BElDLER PHOTOGRAPHI C DEVELOPI NG APPARATUS FiledOct. 26. 1931 4 Sheets-Sheet 4 Patented Dec. 6, 1932 UNITED STATESPATENT OFFICE GEORGE C. BEIDLER. F ROCHESTER, NEW YORK PHOTOGRAPHICDEVELOPING APPARATUSv Application led October 26, 1931. Serial No.571,232.

This invention relates to photographing supplemental film moving meansis desirable and developing apparatus and particularly to and thisinvention is designed to supply that improvements in such apparatuswhich are function.V a included in the patent issued to me April 3, Inthe present embodiment of the inven- 1928, and numbered 1,664,7 29 andalso a pattion, the film moving means within the film 55 ent on coilform film holders forming part of holder is provided with powertransmitting the developing apparatus characterized in means whichutilizethe movement of the film patent issued to me April 3, 1928, andnumfeeding means which, when in operation, bered 1,664,731. draws filmto an exposing chamber for ex- The last mentioned patent relates to acoil posiire and thereafter discharges the exposed 60 film developer anda film developer of this film therefrom and delivers it to thedevelopgeneral type is employed in the apparatus ing tank o rreceptacle. As a further step in of the first mentioned patent and thereis eothe operation, the means for cutting the film active relation and oeration between these into appropriate lengths disclosed in the firstparts and obviously the present invention is mentioned patent isutilizedthrough suitable 65 not restricted in scope and need not necesgearingfor advancing the film in the develsarily be identified by the exactphotogra h-y oping tank after the first mentioned film moying and filmtransferring means of the rst ing means has ceasedto operate and thesaid vmentioned atent nor to the exact structural means for operatingthe film cutter is fur- "features o the coil form film holder part therutilized for disengaging the aforesaid 70 of the developing apparatus ofthe second film moving means from the film in order mentioned patent,that the developer may have access to the It is an object of thisinvention to provide film..

means for delivering film to be developed to lWith the foregoing andother objects in a film developing receptacle and to provide view,the'invention consists in the details of 75 film engaging means forfacilitating move-v COIlStruCtiOn, and 1n the arrangement and ment ofthe film therein and to cause a discombination of parts to behereinafter more engagement thereof when the film is in a pofully setforth and claimed. U lsition to be developed. In other words7 a, Indescribing the invention in detail, refers o'means which engages a filmto move it into ence will be had to the accompanying draw- 8 thedeveloper should disengage the film when ings forming part of thisapplication, whereit is in place in order that the developer may in likecharacters denote corresponding parts be in contact with the wholesurface of the in the several views, and in whichvfilm otherwise therewill be an interrupted y Figure 1 illustrates a plan view of a frag- .85

'development of those surfaces with which ment of film drawing means,cutter opertlie feeding means are in contact. f y ating mechanism andinstrumentalities asso- It is a further object of this invention, ciatedtherewith for effecting movement of therefore, to provide positivelydriven instrufilm in the developing receptacle; I mentalities such asrollers which will engage -Figure 2 illustrates a view in side eleva- 90the film as it is fed into the film holder and tion, partly in section,of the film developing aid in its movement to the proper position fortank and means for moving the film therein; development. When the filmis sufficiently Figure 3 illustrates an enlarged sectional stiff and ofrelatively small dimensions it view of a shaft, a gear wheel and collarj may be delivered to a coil form film holder thereon; 95 by forceapplied to it externally of the film Figure 4 illustrates a sectionalview on the holder and it may be pushed into the film line 4-4 of Figure2; holder without any pulling means being em- Figure 5 illustrates adetail plan view of ployed, but where the film stock is light or thedeveloping receptacle and parts associflimsy and the area of the film isextensive, ated therewith; 10

3 extends.

Figure 6 illustrates an enlarged detail view of the film moving meansassociated with the developing receptacle;

Figure 7 illustrates a transverse sectional view of the developingreceptacle and parts associated therewith;

Figure 8 illustrates a plan view of a frag-.

ment of the developing receptacle and parts associated with it;

Figure 9 illustrates a perspective View of the mechanism associated withthe developing receptacle;

Figure 10 illustrates an enlarged detail View of the film advancingmeans;

Figure 11 illustrates a view in elevation, partly in section, of thecutter operating mechanism and means associated with it;

Figure 12 illustrates a perspective view of a cam shaft;

Figure 13 illustrates a plan view of the cutter operating mechanism andthe connection-between it and the actuating means for the mechanism inthe developing receptacle; and

Figure 14 illustrates a sectional view of the ratchet wheel assembly. Y

The invention is asociated with film drawing rollers 20 and 21 that aredriven in known manner from means externally of a casing, and the shaft22 of the roller 21 projects at the side of the case 23 opposite themeans for turning the rollers. A bearing plate 24 is secured on theoutside of the casing and it has a journal 25 through which the shaft 22A gear wheel 26 idles on the shaft and a. collar 27 is secured on theshaft to rotate With it. tially reduced portion with radially extendingshoulders 28 and 29 where-the reduced 4portion and unreduced portionmerge 'and the gear wheel 26 has a pin 30 secured to it which moves atcertain cycles of the operation around the surface of the reducedportion without coacting with the shoulders and while n the collar 27and shaft 22 are stationary.

A hollow boss 31 on the plate 24 holds a shaft 32 and an idle gear wheel33 thereon meshes with the gear wheel 26 so that when A the paperfeeding rollers are moved the idle 50- wheel turns and itis in mesh witha gear wheel 34 and the gear wheel 34 in turn is in mesh with a gearwheel 35 on a shaft 36 journaled in a bearing 37, which shaft 36 extendsinto the casing and has a clutch mem-- ber 38 on its inner end. Withinthe casing, the coil form film holder`39 is located in position toreceive film which is drawn from a photographing apparatus and pushedinto the said film holder by the rollers 20 and 21. A

. shaft 40 is journaled in one end of a developing fluid receptacle 4l,and the said shaft has a clutch member 42 which coacts with the clutchmember 38. The inner end of the shaft 40 carries -a gear wheel 43 which,through the rotation of the feed rollers 2O The collar has acircumferenand 21 and the gear wheels 26, 32, 34 and 35 is driven fromthe source of power utilized for rotating the feed rollers 2O and 21.

The film holder 39 has vertically disposed fins or plates 44 at its topand a shaft 45 extends therethrough and is journaled in bearings 46 inthe fins or plates at the ends of the film holder. The said shaft has aplurality of feed rollers 47 secured on it and they extend through slotssuch 48 into the film holder near its top. `The shaft has a gear wheel49 secured on it and it meshes with the gearl wheel 43. A friction diskclutch 50 is secured on each end of the shaft 45 and each disk clutch isunder the tension of a spring 51 held in place by a collar52. Eachfriction disk clutch yhas an arm 53 which extends downwardly and each ofsaid arms has a pin 54 riding in a siot55 'of an arm 56 in which a.shaft 57 is journaled. The shaft 57 extends through the film holderlongitudinally and it has rollers 58 coaetingr with the rollers 47 toaid in moving film into the film holder. The arms 56 are secured to ashaft 59 extending longitudinally of the film holder externally thereofand the shaft is journaled in bea-rings 60 secured to the saidfilmholder. Since the arms 56 oscillate, they result in raising andlowering the shaft 57 to carry the rollers 58 into out of operativerelation wtih the rollers `47 and movement is imparted tothe arms forraising and lowering them through the engagement of the friction diskclutches with the gear wheel 49 and a flange 6l of a collar61arespectively on the said shaft 45. n y

By reason of the foregoing conditions. when the mechanism` is driven todraw film and deliver it to the film holder and the gear wheel 49 isvrota-ted and the shaft 45 is turned the arms on the disk clutches areslightly oscillated or swung and this results in elevating the arms andcarrying the feed rollers 58 into operative relation with the feedroller 47 and these rollers engage film coming into the film holderr andaid in moving it around the convolutions of the film holder. Then acertain length of film has been delivered te the film holder, themovement of the mechanism is arrested, at which time the length of filmthat has passed the cutting device is severed by operating the cuttingmechanism,

The Cutting mechanism is of a type commonly employed' in machines towhich reference has been made. For the purpose of understanding of theinvention. part of a mechanism of conventional type is shown and itincludes slidable racks such as 62 having a cutting blade` 63 which ismoved the racks are moved'. it being understood that one such rack islocated at each side of the machine. A shaft 64 extends through cae ingof the machine and pinions 65 secured on the said shaft mesh with theracks ferimparting movement to 'the knife 63. The shaft has a crankhandle 66 by which the said shaft is partially rotated and each rack isunder the tension of a spring 67 vso that the rack is retracted when theoperating handle 66 is Y released.

The shaft f-l in this embodiment of the invention projects through thecasing on the side opposite that having the operating handle 66 and acrank 68 is secured on the shaft 64. The link 69 which, in thisinstance, is curved is pivotally connected to the crank 68 and to avslot-ted plate 70, and the plate is guided by a roller 71 rotatable onthe shaft 22 and a hub 72 of va ratchet wheel 73 which is rotatable onthe shaft 32.

The plate has dogs 74 which are pivoted on a plane, in the presentembodiment of the invention, above and below the plane of the teeth ofthe ratchet Wheel 73. The dogs are so yieldably held that the ratchetwheel is in the path of travel of their free ends as the slotted plateis reciprocated, and one dog is in advance of the other, hence one dogrotates the ratchet wheel in one direction and releases the said wheelbefore ythe other dog engages the said wheel to rotate it in oppositedirections and, as the ratchet Wheel is secured to the gear wheel 33, itturns the sai-d gear wheel successively in alternate directions.

It is obvious that since the gear wheel meshes with the gear wheel 34and the gear wheel 34 meshes with the gear wheel 35, the shaft 36 willbe turned in a direction first to operate the rollers 47 and 58 to feedthe paper a short distance beyond that by which it was fed by theoperation of the film drawing rollers 20 and 2l and that reversal ofmovenient of the slotted plate will cause the rotation of the ratchetwheel in the opposite direction which movement turns the wheel 49 in adirection opposite to that in which it was turned when the paper wasbeing fed, resulting in swinging the arms of the friction disk clutchesin a direction to lower the arms 56 and the shaft 57 so that the rollers47 and 58 release the film to permit the developing fluid to have accessto the sensitized sides thereof.

The gear wheel 26 idles on its shaft but is positively driven in onedirection by reason of the engagement. of its pin with a shoulder of thecollar 27. The distance between the shoulders 28 and 29 is sufficient topermit the gear wheel 26 to move under the influence of the wheel 33 tothe degree that said gear wheel is moved by the action of the dogsengaging the ratchet wheel in imparting the alternate rotary motion tothe wheel 33. Rotation of said Wheel in one direction advances the filminto the film holder after it is cut and reverse movement of the Wheel33 causes disengagement of the wheels with the film when the armscarrying the shaft 57 are moved. After the film is developed it isremoved from the film holder in known manner.

The feed roller 20 is movable toward and away from the feed roller 21for the purpose of 'enabling film to be drawn between the rollerswithout operation of mechanism for the purpose. As a means forseparating the rollers, the roller 20 has its shaft mounted on bellcrank levers such as 21 and the end of each of the bell crank leversremote from the shaft is engaged by a cam shaft 2lb and when said camshaft is turned the roller 2() is moved toward and away from the roller.21.

I claim 1. In a photographic developing apparatus, a holder of coil formfor developing film, means for feeding film to the holder, suitablyoperated means in volutions of the coil for engaging film and advancingit in the holder, and means for operating the said engaging means torelease said film when said film is located in the holder.

2. In a photographic film developing apparatus, a film holder of coil.form adapted to receive film when pushed thereinto endwise, suitablyoperated means within the holder for engaging film for advancing it inthe film holder including means for disengaging the said means from thefilm when said film is located in the holder.

3. In a photographic developing apparatus, a coil form film holderhaving apertures near the top thereof, rotatably mounted rollers havingtheir peripheries extending through the apertures, a shaft on which thesaid rollers are mounted, a gear wheel on said shaft, friction diskshaving arms on said shaft, one of which coacts with the gear Wheel, aflange on said shaft engaged by the other disk, means for holding eachdisk in engagement with its coacting element on the shaft, oscillativelymounted arms having slots, a pin carried by each arm of a disk movablein one of the slots, a shaft carried by the oscillatable arms, rollersthereon adapted to coact with the first mentioned rollers, gearing forrotating the first mentioned shaft, a ratchet wheel connecting to movethe gearing, a member mounted to reciprocate in operative relation tothe ratchet wheel, dogs pivoted thereon above and below the plane of theratchet wheel movable in the path of the teeth of the ratchet wheelwhose free ends are one in advance of the other.

4. In a photographic'developing apparatus, a coil form film holder intowhich film is delivered endwise, cooperating rollers operative withinthe film holder for engaging film entering the film holder and advancingthe said film therein, means for causing cooperative action of therollers on the film, and ieans for disengaging the rollers from the 5.In a photographic developing apparatus, a holder for developing film,means for feeding .film to the holder, means for engaging film andadvancing it in the holder,

fil

gearingdriven by the firstmentioned means fordriving the secondmentioned means, and means for alternately rotating the gearing when thefirst mentioned means is at rest.

6. In a photographic developing apparatus, a coil form film holder,rollers having mountings stationary with relation to the film holder andwith relation to which the rollers rotate, said'rollers having theirperipheries extending into the film holder, rollers in the film holdercoasting With the first mentioned rollers for engaging film andadvancing it in the film holder mountings for the second mentionedrollers, means for moving said mountings to carry the rollers intooperative relation with Athe first mentioned rollers and for rotatingsaid rollers, means for driving the means for rotating the rollers, andmeans independent of the driving means for rotating said rollersalternately in opposite directions after the first mentioned means fordriving the rollers is at rest, including means for effecting aseparation of the coacting rollers associated with the film holder.

7. In a photographic developing apparatus, a coil form film holder,suitably operated I means for engaging film and exerting a pull thereonto advance the film in the holder, and means to operate said means torelease the 8. In a photographic developing appara-- tus, a holder fordeveloping film, means for feeding film to the holder, means forengaging film and advancing it in the holder, gearing for driving thesecond mentioned means, and means for rotating the gearing in alternatedirections when the first mentioned means is at rest.

9. In a photographic developing apparatus, a coil form film holder,rotatively mounted rollers having their `peripheries extending into thefilm holder,rollers coacting therewith for advancing film into theholder, means for moving the last mentioned rollers into and out ofcoactive relation with the first mentioned rollers, whereby the film isalternately engaged and disengaged and means for imparting rotary motionto said rollers.

l0.y In a photographic developing apparatus, a holder for developingfilm, means for feeding film to the holder, means for engaging film andadvancing it in the holder, gearing for driving the vsecond mentionedmeans, a ratchet Wheel rotative with the gearing, means for rotating theratchet wheel alternately in opposite directions, means for cutting thefilm, means for operating the last mentioned means, and for operatingthe means for rotating the ratchet Wheel.

1l. In a photographic developing apparatus, a coil form film holderhaving apertures near the top thereof, rotatably mounted rollers havingtheir peripheries extending through the apertures, a shaft on which thesaid rollers are mounted, a gear Wheel on said shaft, friction diskshaving arms on said shaft, one of which coacts with the gear wheel, aflange on said shaft engaged by the other disk, means for-holding eachdiskin engagement with its coacting element on the shaft, oscillativelymounted arms having slots, a pin carried by each arm of a disk movablein one of the slots, a shaft carried by the oscillatable arms, rollersthereon adapted to coaot with the first mentioned rollers, means for'rotating the first mentioned shaft for moving the sets of rollers intooperative relation to each other and advancing film, means for cuttingthe film, means for operating the first mentioned shaft to advance thefilm in the film holder after the first mentioned means for operatingthe rollers is at rest,'and means for .moving the first mentioned shaftin the opposite direction to disengage the sets of rollers from thefilm.

l2. In a photographic developing apparatus, a coil form film holder, ashaft journaled in stationary bearings, rollers thereon having theirperipheries extendinginto the lm holder, rollers coacting therewith forengaging .film andadvancing it in the film holder, a mounting for thesecond mentioned rollers, means for moving the said mountings toward andaway from the mounting of the first mentioned `rollers and effectingalternate engagement and disengagement of the rollers and the film, andmeans for driving the said rollers.

13. In a. photographic developing apparatus, a coil form film holderhaving apertures near the top thereof, rotatably mounted rollers havingtheir peripheries extending through the apertures, a shaft on which thesaid rollers are mounted, a gear wheel on said shaft, friction disl-:shaving arms on said shaft, one of which coacts with the gear wheel, aflange on said shaft engaged bythe other disk, means for holding eachdisk in engagement with its coacting element on the shaft, oscillativelymounted arms having slots, a pin carried by each arm of a disk movablein one of the slots, a shaft carried by the oscillatable arms, rollersthereon adapted to coact with the first mentioned rollers, means forrotating the first mentioned shaft for moving the sets of rollers intooperative relation to each other and advancing the film, and meansindependent of the last mentioned means for rotating the first mentionedshaft alternately in opposite directions after the said last mentionedmeans are at rest.

14. In a photographie developing apparatus, a holder for developingfilm, means for feeding film tothe holder, means for engaging film andadvancing it in the holder, gearing for driving the second mentionedmeans, a ratchet Wheel rotative with the gearing, and means for rotatingthe ratchet Wheel alternately in opposite directions.

15.v In a photographic developing apparatus, a coil form film holderhaving apertures near the top thereof, rotatably mounted rollers havingtheir peripheries extending through the apertures, a shaft on which thesaid rollers are mounted, a gear wheel on said shaft, friction diskshaving arms on said shaft, one of which coacts with the gear wheel, aflange on said shaft engaged by the other disk, means for holding eachdisk in engagement with its coacting element on the shaft, oscillativelymounted arms having slots, a pin carried by each arm of a disk movablein one of the slots, a shaft carried by the oscillatable arms, rollersthereon adapted to coact with the first mentioned rollers, gearing forrotating the first mentioned shaft, means for operating the gearing toadvance the film in the film holder, and suitably operated meansindependent of the last mentioned means for successively rotating thegearing in opposite directions.

16. In a photographic developing apparatus, a coil form film holder, ashaft journaled in stationary bearings, rollers thereon having theirperipheries extending into the film holder, rollers coacting therewithfor engaging film and advancing it in the film holder, a mounting forthe second mentioned rollers, means for moving the mountings toward andaway from the mountings of the first mentioned rollers whereby saidrollers alternately engage and disengage the film, means for driving thesaid rollers, film cutting mechanism, means for operating saidmechanism, and means for imparting motion of the said means foroperating the cutting mechanism to the means for moving the mounting ofthe second mentioned rollers.

17. In a photographic developing apparatus, a holder for developingfilm, means for feeding film to the holder, means for engaging film andadvancing it in the holder, gearing for driving the second mentionedmeans, a ratchet wheel rotatable with the gearing, a member, dogs onsaid member, one in advance of the other, below and above the planes ofthe ratchet wheel teeth respectively, operative to engage said ratchetteeth alternately, and means for reciprocating the member.

18. In a photographic developing apparatus, a coil form lm holder havingapertures near the top thereof, rotatably mounted rollers having theirperipheries extending through the apertures, a shaft on which the saidrollers are mounted, a gear wheel on said shaft, friction disks havingarms on said shaft, one of which coacts with the gear wheel, a flange onsaid shaft engaged by the other disk, means for holding each disk inengagement with its coacting element on the shaft, oscillatively mountedarms having slots, a pin carried by each arm of a disk movable in one ofthe slots, a shaft carried by the oscillat-able arms, rollers mounted

